sbs&tibs SG I got 2 types of 98 SBS guide. 1st: Between Jurong East & Jurong Pier Road 2nd: Between Jurong East & Corporation Road/ Jurong Pier Road
gynobcard SG 98 goes the entire route ie JRE to Jurong Pier Rd/Fishery Port Rd (loop) 98A plies JRE to Corporation Road (Corporation Place) [loop]
service_238 SG The second version might be an indication to show that 98 loops at 2 places. 98A for the former, 98 for the latter.